While Father Khatri is speaking to Sara about the number of books in the Bible, he repeated says there are 66 books. In the normal Bible there are only 66 books. There are 39 books in the Old Testament and 27 books in the New Testament.
Dude is out in the woods trying to use the short-wave radio, but it doesn't have an antenna.
When Sara is drawing her vision on the paper, the pen clearly does not have an ink cartridge.